Turbines are huge, intricate, beautiful machines. And if you drop something inside of them, they double as musical instruments. But as YouTuber AgentJayZ demonstrates, the delightful xylophone sound that makes is actually horrible.

Why? If you've got a screw in there and you turn it on, you're going to be the owner of a brand new broken turbine. And if you want to get it out, well, it's time to take the whole sucker apart and go fishing for bolts. Not fun. But if you're not too busy screaming "oh god no!" it's a fantastic little noise to hear.